/*
        cf_regdefs.c - necessary coldfire definition for skyeye debugger
        Copyright (C) 2003 Skyeye Develop Group
        for help please send mail to <skyeye-developer@lists.sf.linuxforum.net>

        This program is free software; you can redistribute it and/or modify
        it under the terms of the GNU General Public License as published by
        the Free Software Foundation; either version 2 of the License, or
        (at your option) any later version.

        This program is distributed in the hope that it will be useful,
        but WITHOUT ANY WARRANTY; without even the implied warranty of
        MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
        GNU General Public License for more details.

        You should have received a copy of the GNU General Public License
        along with this program; if not, write to the Free Software
        Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

*/
/*
 * 12/16/2006   Michael.Kang  <blackfin.kang@gmail.com>
 */


#include "skyeye2gdb.h"
#include "skyeye_types.h"
#include "memory.h"

#define CF_NUM_REGS 18
extern struct _memory_core memory_core;
static int cf_register_raw_size(int x){
	return 4;
}
static int cf_register_byte(int x){
	return (4 * x);
}

static int cf_store_register(int rn, unsigned char * memory){
	WORD val = frommem(memory);
	if(0 <= rn < 8)
        	memory_core.d[rn] = val ;
        else if(8 <= rn < 16 )
        	memory_core.a[rn-8] = val ;
        else if(16 == rn)
                        memory_core.sr = val;
        else if(17 == rn)
                        memory_core.pc = val;
	else
		return -1;
	return 0;
}

static int cf_fetch_register(int rn, unsigned char * memory){
	WORD regval;
	if(0 <= rn < 8)
		regval =  memory_core.d[rn];
	else if(8 <= rn < 16 )
		regval =  memory_core.a[rn-8];
	else if(16 == rn)
		regval =  memory_core.sr;
	else if(17 == rn)
		regval =  memory_core.pc;
	else
		return -1;	
	
	tomem (memory, regval);
	return 0;
}

static register_defs_t cf_reg_defs;

/*
 * register coldfire register type to the array
 */
void init_cf_register_defs(void){
	cf_reg_defs.register_raw_size = cf_register_raw_size;
	cf_reg_defs.register_bytes = CF_NUM_REGS * 4; 	
	cf_reg_defs.register_byte = cf_register_byte;
	cf_reg_defs.num_regs = CF_NUM_REGS;
	cf_reg_defs.max_register_raw_size = 4;
	register_reg_type(cf_reg_defs);
}